thank you to everyone for your help in answering my other questions...but i forgot one other problem i am having. ever since we bought my car the ABS light has been on. i believe that this might have something to do with the fact that my brake pedal will just sink to the floor without warning and that has almost caused me many accidents. it does't just sink to the floor when i am at a stop it will also do it when i am driving and i apply the brake. all of my brakes are new and in good condition, i have plenty of brake fluid and the brake lines have been bled to make sure that there were no air pockets in the lines. anyone know what this could be?

 

could be a bad master cylinder.
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